Mary can _______ (swim) well, she is also good at skating.求答案,解析,越详细越好.谢谢.
问题描述：
Mary can _______ (swim) well, she is also good at skating.求答案,解析,越详细越好.谢谢.
答
原行，can是情态动词，后加动词原形，
答
Mary游泳不错,对溜冰也很在行.情态动词（can)后跟动词原形,be good at后跟名词,skating是动→名词.